Extra thick head gaskets
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Elder User
Joined: May 2002
Posts: 627
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From: Claremore, Ok 74017
Extra thick head gaskets
About to a cam swap in my truck to a roller cam. Want to lower the compression from 9.6 to closer to 9.0. However I don't want to change pistons or the heads since all is fairly new. I am running windsor jr 180 heads and a ford racing short block with hypertetic pistons for 9.0 compression with 64cc heads, my heads are 58 or 56 cc. Any suggestions.
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
Fel-Pro makes a head gasket shim, part # 8548SP1, for these engines.
I believe it is just a copper shim, the same shape as the head gasket and goes between the block and the gasket.
Why do you want to lower the compression?
I believe it is just a copper shim, the same shape as the head gasket and goes between the block and the gasket.
Why do you want to lower the compression?
Thread Starter
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Elder User
Joined: May 2002
Posts: 627
Likes: 0
From: Claremore, Ok 74017
Wanting to lower my compression so for know I can run cheaper fuel. I am looking at supercharging it later. Lower compression with more boost equals more power. Thanks for the part number
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